Check the listing for details. Fluorinert FC-3261 Inert Liquid Heat Sink - Estimated at 18 to 20 ml Per Pouches. Condition: Used. Listed at 16.95 USD. This listing is for a single (one) sealed pouch of old-stock Fluorinert FC-3261 Liquid Heat Sink with at least 1.18 ounces in weight, not including the pouch's packaging weight. Someone donated these pouches to a community space and they didn't find a use for them. One of the photos shows all of the pouches for reference, but you will receive 1 pouch for each quantity ordered. The FC-3261 does not have specifications listed on the 3M website, so this is presumably rather old stock and we don't know about the age. Though, we did find a reference to this FC-3261 in a patent application for a spinning hard drive. The pouches are marked 3M / ICPD and the pouch size (2.0 in x 4.5 in. / 5.1 CM x 11.4 CM). They may have some light adhesive on one side, from previously been stuck to something and then peeled off. The lowest weight on the pouches we have is 1.27 ounces and the highest weight is 1.37 ounces. An empty pouch weighs .09 oz, so by our estimates, these pouches should have at least 18 milliliters of fluid inside and many will have slightly more, up to around 20 ml. This assumes the density of 1.855 grams per milliliter, which is what is suggest on the 3M website. If you believe a different density is needed, then please convert using the ounce weighs of between 1.18 and 1.28, which is the weight minus the .09 oz weight of an empty plastic pouch. We don't have additional information about these pouches, but please do ask questions before purchasing. The pouches have the feeling of a thick fluid inside when they are lightly shaken, so they are not hardened and there's no signs of the pouches leaking or being punctured. There are different lot numbers on the pouches, ranging from Lot 401 to Lot 734. We will ship these at random, so we cannot guarantee a specific Lot. Though, we will try to ship the highest numbered lots first. Disclosures This item will be loose packed with no consumer packaging, instructions, or safety labels included. No warranty or endorsements are implied from the manufacturer or compatible brands. However, our seller return policy is the most generous option defined by eBay and is described below.Free Shipping Shipping is free to the 50 US states and US territories via US Postal Service Ground Advantage® (2-5 days in transit; based on location). This item will not ship to US APO/FPO or internationally. Orders paid before noon Eastern Time (Monday-Saturday) will typically ship out the same day, excluding Sunday or post office holidays. eBay shows estimated delivery dates on the listing and at checkout. Nothing ships on Sunday or during post office holidays. All such orders will ship the day the carrier re-opens. Expedited shipping may be available at checkout for an extra fee. Free Returns If you have an issue, then we'll pay for return shipping as needed. We'll refund the full purchase amount as long as everything is returned in its original condition.